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DAI Tie-jun. Influence of Element-flow in Metallurgy Manufacturing Process on Its Resource Efficiency[J]. Journal of Beijing University of Technology, 2009, 35(6): 830-838. DOI: 10.3969/j.issn.0254-0037.2009.06.021
Citation: DAI Tie-jun. Influence of Element-flow in Metallurgy Manufacturing Process on Its Resource Efficiency[J]. Journal of Beijing University of Technology, 2009, 35(6): 830-838. DOI: 10.3969/j.issn.0254-0037.2009.06.021
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Influence of Element-flow in Metallurgy Manufacturing Process on Its Resource Efficiency

  • Institute of Recycling Economy, Beijing University of Technology, Beijing 100124, China

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  • Received Date: June 04, 2008
  • Available Online: December 06, 2022
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    • Abstract
  • In order to quantitatively evaluate resource efficiency, this paper analyzed the law of element-flow in metallurgy manufacturing process and the influence of different element-flows on element resource efficiency, and put forward the definition of element resource efficiency for defining the saving degree of natural resources in metallurgy manufacturing process.A standard element-flow diagram of metallurgy manufacturing process was given.The influence of element-flow deviated in various ways from standard element-flow diagram on element resource efficiency was analyzed.The relationship between element resource efficiency of metallurgy manufacturing process and of its unit process was discussed.By using the data of a steel plant, the influence of iron-flow in steel manufacturing process on its iron resource efficiency was analyzed as an example.The result shows that the input of secondary resources to any unit process of a manufacturing process from surrounding increases the resource efficiency of the manufacturing process;the output of unqualified and other waste product from any unit process to surrounding decreases the resource efficiency of the manufacturing process;and the recycling of material within a unit process or from a unit process to its upper-stream unit process will not influence the resource efficiency of the manufacturing process, but will increase the energy intensity and the cost of final product.
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